[{"source_document_id":3,"title":"Edible Apples in Prairie Canada","url":"https://research-groups.usask.ca/fruit/documents/apples/Edible-Apples-in-Prairie-Canada1.pdf","rights_status":"unknown","evidence_claim_count":16,"relationship_count":0,"history_event_count":0,"sample_snippets":["References cited: E. (Brendan ‘Casement, Alberta Tree Nursery & Hort Centre.).","Listed as a standard apple (standard apple, fruit 5 cm diameter or more).","A further reference is given to P. O. McCalla.","After propagation and distribution to prairie testing stations, reports indicated that better apples than George were already available and on trial."]}]